I tried this on the AFM thread, but got no takers. Here's hoping that the larger group can help me please:

I have some issues with my 3 Bank Target motor, so I ordered one from Marco. The old motor is leaking oil, so I thought that it was time to replace it. https://www.marcospecialties.com/pinball-parts/14-8023 Marco claims that this fits AFM and Jackbot.

Installing the new motor was easy as it fits perfectly in the target motor bracket. But as I took the motor out of my AFM, I found that the Shaft on the new motor was larger than the original (I think) motor that I had in my machine. The new motor will not fit the existing cam for the assembly. So, to sum it up, the original motor has a smaller shaft than the newer motor.

Has anyone run into this before? Or did Marco get the wrong motor for AFM? Maybe my cam fits the older motor and is not a standard AFM cam?

I just talked to Marco and they have sold 11 of these motors over the years, so they are not sure what is the issue.

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Bump to see if anyone can help with information...

Thanks. i was away for work training, but I appreciate the comments.

i will look into taking the motor apart and see what gives. I wasn't thinking about drilling the cam due to "what if I have to replace it again, and the motor shaft is smaller on the new one?"

I'm going to take some measurements to see what the two shaft sizes are and post them here. Might as well be helpful to the team if someone else runs into this issue.

To the group,

I delayed this for awhile so that I could get to the bottom of the motor. jfesler was nice enough to let me ruin (jk) his AFM and check out his motor.

It turns out that he has the same motor with the smaller shaft as I do. The Marco replacement has the larger shaft and will not work with the original cam.

First one is the jfesler one, the second is mine and the third is the Marco. Measurement of the original shaft size is shown below.

I will contact Marco and see if they need to adjust their motor suppliers.

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